Hi Lou, What you would like to do is IMHO possible in theory, but you have to take into account the capabilities of the math model and the devices you use. If you try to mimic the actual printed piece on your screen (meaning you switch to soft-proof mode in Photoshop) you’re working in the 8-bit realm of the current graphics software and device drivers. If you’re far away from the target (eg. on a screen calibrated to a white point of 6500K) the color management engine has to perform a large correction to achieve the desired result. Measurement and profiling errors add up, and the color you see on screen will not be perfect. On the other hand, your original approach (calibrating to 5700-5800) is almost perfect, as that’s the ‘perceived’ white point of today’s OBA-stuffed coated papers under 5000K lighting. In this case, the color management engine performs a relatively small conversion on the white point, so the errors will be smaller or negligible. Until we don’t have 10 or more bit ‘deep’ device drivers and monitors (and work with 16 bit images in Photoshop), the best you can do is to calibrate to the closest perceived white. Another consideration might be to employ displays which are more conservative on the contrast; we don’t need 1:10000 for soft proofing. Kind regards, Peter Nagy